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m. l to EERNRB H. SXELLY, G?? BELDGHIFQRT, CONECTBCUT.

Specification o Letters atent.

ppleation filed pril 5, wie. ET/,

Zio @ZZ wfwm et may concern:

Be it known that LBERNARD H. SKELLY, n citizen of the United States,residing et tliecity or Bridgeport, in the county ot Fairfield .andState of Connecticut, have invented certain new and useful improvementsin 'Force-Feed Lubricators; and l do declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesaine.

.lily invention relates to force feed lubricators substantially like thelubricator shown and described in my Patent No'. ,2i38,869, issued June1 8,- 1918 or in my 'pending application, Serial No. 262,432, 'ledNovember il, 1918, and has for its object to pro'ide for selectivelubrication or limited lubrication in instances Where' the lnbricatorpistons or plungers are actuated by a. cam or by a plurality of earnsthat are rigid together and have tbe same axis oa'' rotation. I

ln my `prior Constructions, selective lubrication uns obtained only byemploying separate series of plnngers and actuating cams, and tbe cam orcams of each series had. of course, diiferent axes of rotation. n mypresent invention, either a single plunger r any number of plungers, ina series of plunggers that are actuated by a single cam or b v aplurality of cams havingl the same artis oi' rotation, may be sodisposed that either a limited lubrication Will be had or no lubricationwhatever.

' ln the aocornpanyinteY drawing- Figure l is a sectional elrvation of astru-:ture embodying my improvement, the section. being1 taken at theline 1-1 of itin'.

Fig, 2 a section at tbc line 22 of Figi. 2S a broken sectionalelevation, similar to Fiji. l. but showing; a plunger completelydepressed and locked down. and

Fin'. -ta view similar to Fig. -l but showing a plunger locked down whenpartly depressed so [lult suoli plunger will bave a short pumping' roke'fol limited lubrication.

'limilar numeral,`4 or" reference deuole like paris: iu lic Severalfigures' of iluI drawing.

A casing or rwervoir l llas` a over plate by tile removal of u'bii'liarress mayy be obtained to the interior Working mechanism of thelnbricntor.

Il cylinder block 3 is contained Within the casing and may be formedtherewith or separately secured therein as desired, it merely beingnecessary that there should be suitable communication between tlie oilin the reservoir and the inlet flof each pump cylinder.'

The bottom ot each cylinder is counter bored to provide valve seats forthe valves S.'

Laterally and outwardly from each cylinder leads an outlet port 7adapted to receive a valved nipple (not shown) for connection With themechanism to be lubricated.

A plunger 8 is vertically operable in each cylinder, and the plannersare nor,- nrally held in elevated position by encircling coil springs 9interposed between the .heads l0 ot' the plungers and the cylinderblock.

Above the plnngers is a cam shaft l2 Whose ends are suitably journaledin the end walls of the reservoir, the sliai't being extended andprovided with a suitable crank 13 for purposes oir' operation, but ofCourse. a Wrench bold on tbe shaft for attachment of a ratchet WrenchCan be einployed instead of the cranl-.

Ypair of cams il and l5 are carried on the sl1al"t ,said cams beinglongitudinally and eceentrically bored to receive tbe shaft, and arefixed thereon by the transverse key pins 16. The cams are relativelv atan angle of approximately 180", i

As. slio'xvn in the drawing there are tu'o sets of plunger-s S' whichare always held against their respective cams by the springs 9.

The construction far as described is the saine as that forth in mypending application above noted, the object being to provide for a clearunderstanding or mv present invention without any particular or detailrcfercnclo said application.

Non', )vitli solo regard to the present iinproveinent, attention will becalled to the manner in which limited or selective lubrication iseli'oeted.

17 is a ledee extenfliino` from the block 3 and m'cilizlxig'iiioa thereservoir, and le? are vertical rods` Whose lower extremities .are fixedin any suitable manner to said ledge and whose upper ends are screwthreaded.

lil-5 cile aba rods ai oil, and and .secured tlm plunger-s n Inova inharmony lierewalr. mui-ing these plaies own. the, limeicls l() hemd.being rd Stein o Sucke'; i te l) rods j.;V and andrl tlm "ills 1- plungehan; neen deprcsnecl by al l: muy le@ securely ed in finir; cledpofsiion by lriv f nut down lle @op @flle @hoi/vn :f5 ninna an n lleclzmh bfi-naam @sich can;

il by bridge plate, sleeve and nut, and it will therefore be clear that:my dasircd number of plungers muy be solver d aitller fm'.nonlubrication or parturl lubrication. and since these plungers are:lll identified with the particular locutions to lm lubricated rsu/liselection muy lm iutrlligenly mudo.

-lffhile l have, illusfufd my niosrut iuvention in connection with lleslruviure Shown und desrrlbed in my pending :WML cation :ibow noted. itwill be, rlmir 'hnl this; invention is equally zipplii-:dilu lio nsirufz niure like that shown in my putrut tu which have refer-rml.

l claimM l v l: lu 21 'form feud lulu-icutor comprising' Springrotriuted pumping: pluuggrs :uid menus for depressing' tlm mure, menuslocking n Selective number 01" Suid plungljmn in depressa] position.

El. lin :L forro 'feed luln' atmu- 'llu combin nation of u series olfSpring rotrncl'od puur ling plungers operable tu dolx'rr u lulirimu lithrough indiridunl outlets und rotary canne for depressing saidplungers, 0l: nu'zins idrfn- ,ied with each plungur fur lookingsvlvutivu plungers in depresbod position.

3. A force )uned lulnicumr comprising u reservoir, a cylinder blockslrucur therein lmving :iliued Cylndvr bores prmidvd will] inlet undoulvt ports, spring rrl/rzrrled plunger-s operable iii tluvylindvrs,runny clins for deprrsesiug thc plungvrs. :1 ,rigid Vertical rodOpposite 0:1011 plunger nud lluving threaded uppfar @ud7 n slidulllebrida, pieve surrounding Suid rod und plungvr and c onind at its inneroud brtxwuu tlm heard of lll@ plunge' :ind its s'iriug. n slid ableSleeve Surroumlingr tlm rud :nid rw V 'upon said plain, und la nutdrirvn on ui upper and 0l' smid rod :dimi: said :slum/Q, 'whereby whendus pluugvr is in 'lrprorssr-fl pusltion Suid nut muy br driven against.lw. lop nl' tlm sleeve tu limit the .srolca nl said plungr.

ln testimony whereof l :Lflix in presence of two witnvhsea BTUARD ll.KELLY.

my Signature l/lfitnesses I?. Vl". klxirru, M. LQNGDEN

